Manchester United manager Erik ten Hag says it's 'unacceptable' that some players left Sunday's friendly with Rayo Vallecano early.
Cristiano Ronaldo was among the players pictured outside the ground before the match had ended.
Ten Hag told Dutch TV it was 'unacceptable' and that players 'have to stay until the end'.
Ronaldo has expressed a desire to leave Old Trafford, but played the first half of Sunday's match.
Former Manchester United assistant Chris Armas claims constant media speculation about what was going on behind the scenes destabilised the team.
An unsuccessful spell under interim boss Ralf Rangnick ended without qualification for the Champions League.
But Armas tells Sky Sports News, they actually set things up well for new head coach Erik ten Hag.